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Discussion in 'Yamaha 250cc In-Line 4's' started by maelstrom, Mar 14, 2015.
from http://www.fzr250.com/attachments/japbroch/JapBroch06.JPG
3LN1
That was going to be my guess. Round headlight is a giveaway
Twin headlights and protruding tail light lenses
Yep 3LN1